Type error with generated types for blocks

[sane6]

I'm trying out payload I ran into a problem with generated types for blocks that makes next js linting step fail.
Here's my simple block:

import type { Block } from "payload";
import { lexicalEditor } from "@payloadcms/richtext-lexical";

export const SimpleBlock: Block = {
    slug: "simpleblock",
    interfaceName: "Simple Block",
    labels: {
        singular: "Simple Block",
        plural: "Simple Blocks",
    },
    fields: [
        {
            name: "richtextfield",
            type: "richText",
            required: true,
            editor: lexicalEditor({}),
        },
    ],
};

And it's rendered basically in the same way it's done in payload website template:

import { Fragment } from "react";
import { type Page } from "@/payload-types";

import { SimpleBlock } from "@/blocks/SimpleBlock/SimpleBlockComponent";

interface Props {
    blocks: Page["layout"][0][];
}

const blockComponents = {
    simpleblock: SimpleBlock,
};

export const RenderBlocks: React.FC<Props> = (props) => {
    const { blocks } = props;

    const hasBlocks = blocks && Array.isArray(blocks) && blocks.length > 0;

    if (!hasBlocks) return;

    return (
        <Fragment>
            <div>
                {blocks.map((block) => {
                    if (!block.blockType || !(block.blockType in blockComponents)) return;

                    const BlockComponent = blockComponents[block.blockType];

                    return <BlockComponent {...block} key={block.id} />;
                })}
            </div>
        </Fragment>
    );
};

But for some reason I'm getting this error:

./src/payload-types.ts:511:27
Type error: Type 'SimpleBlockSelect' is not generic.

  509 |     | T
  510 |     | {
> 511 |         simpleblock?: T | SimpleBlockSelect<T>;
      |                           ^
  512 |       };
  513 |   meta?:
  514 |     | T

I could turn off linting since everything works fine, but I would rather find out what's causing this issue.
Does anyone have any idea?

[sane6]

After banging my head at this problem for a whole day, I decided to make this post. 10 minutes later I realized I have a space in block interfaceName.